CVE-2021-26777 Memory corruption in n/a
A buffer overflow in the smart metering concentrator firmware allows attackers to execute arbitrary code via the index.cgi interface.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-26777?
CVE-2021-26777 is a critical memory corruption vulnerability in n/a, published on 2 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Buffer overflow vulnerability in function SetFirewall in index.cgi in CIRCUTOR COMPACT DC-S BASIC smart metering concentrator Firwmare version CIR_CDC_v1.2.17, allows attackers to execute arbitrary code.
Weakness: CWE-120
Which versions are affected by CVE-2021-26777?
It affects 1 product.
Products include Circutor Compact Dc-S Basic Firmware.
How do I fix CVE-2021-26777?
No fix has been published for CVE-2021-26777 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-26777 being exploited?
There is no known exploitation of CVE-2021-26777 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-8ggf-hm8x-6hp7.